Intenna of wireless terminal

ABSTRACT

An intenna of a wireless terminal including at least one intenna for transmission/reception of wireless communication signals, and an intenna for reception of digital broadcast signals. Also an intenna of a wireless terminal, which includes at least one intenna for both transmission/reception of wireless communication signals and reception of digital broadcast signals, and an intenna for reception of the digital broadcast signals. Further, an intenna of a wireless terminal, which includes an intenna for both transmission/reception of wireless communication signals and reception of digital broadcast signals. Furthermore, an intenna of a wireless terminal, which includes at least one intenna for both transmission/reception of wireless communication signals and reception of digital broadcast signals, and at least one intenna for transmission/reception of the wireless communication signals.

PRIORITY

This application claims priority to an application entitled “Intenna ofWireless Terminal” filed in the Korean Intellectual Property Office onAug. 23, 2005 and assigned Serial No. 2005-77344, the contents of whichare incorporated herein by reference.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to an internal antenna or “intenna” of awireless terminal, and more particularly to an intenna of a wirelessterminal, which provides an intenna for reception of digital broadcastsignals or an intenna for wireless communication signals and digitalbroadcast signals.

2. Description of the Related Art

A wireless terminal includes an antenna for transmitting/receivingwireless communication signals. Usually, such an antenna is an externalantenna provided outside of a wireless terminal. In addition, an intennawhich may be installed inside of a wireless terminal has been provided.The intenna is installed inside of the wireless terminal, therebyreducing the available package space of the wireless terminal.

Currently, a wireless terminal includes a separate antenna for receivingdigital broadcast signals for a Digital Multimedia Broadcasting (DMB) aswell as general wireless communication signals. However, because theseparate antenna for reception of the digital broadcast signals is anexternal antenna provided outside of a wireless terminal, the separateantenna adds to the package space of the wireless terminal.

SUMMARY OF THE INVENTION

Accordingly, the present invention has been made to solve theabove-mentioned problems occurring in the prior art, and it is an objectof the present invention to provide an intenna of a wireless terminalfor reception of digital broadcast signals.

It is another object of the present invention to provide an intenna of awireless terminal for transmission/reception of wireless communicationsignals and reception of digital broadcast signals.

In accordance with one aspect of the present invention, there isprovided an intenna of a wireless terminal, the intenna including atleast one intenna for transmission/reception of wireless communicationsignals; and an intenna for reception of digital broadcast signals.

In accordance with another aspect of the present invention, there isprovided an intenna of a wireless terminal, the intenna including atleast one intenna for both transmission/reception of wirelesscommunication signals and reception of digital broadcast signals; and anintenna for reception of the digital broadcast signals.

In accordance with further another aspect of the present invention,there is provided an intenna of a wireless terminal, the intennaincluding an intenna for both transmission/reception of wirelesscommunication signals and reception of digital broadcast signals.

In accordance with another aspect of the present invention, there isprovided an intenna of a wireless terminal, the intenna including atleast one intenna for both transmission/reception of wirelesscommunication signals and reception of digital broadcast signals; and atleast one intenna for transmission/reception of the wirelesscommunication signals.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other objects, features and advantages of the presentinvention will be more apparent from the following detailed descriptiontaken in conjunction with the accompanying drawings, in which:

FIG. 1 is a block diagram illustrating the construction of a wirelessterminal including an intenna according to a first embodiment of thepresent invention; and

FIG. 2 is a block diagram illustrating the construction of a wirelessterminal including an intenna according to a second embodiment of thepresent invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Preferred embodiments of the present invention will be described indetail herein below with reference to the accompanying drawings. Thesame reference numerals are used to designate the same elements as thoseshown in other drawings.

An intenna according to the present invention may include both anintenna for transmission/reception of wireless communication signals andan intenna for receiving digital broadcast signals. Further, an intennaaccording to the present invention may include an intenna fortransmission/reception of wireless communication signals and receptionof digital broadcast signals. Furthermore, an intenna according to thepresent invention may include an intenna for both transmission/receptionof wireless communication signals and reception of digital broadcastsignals, and an intenna for receiving the digital broadcast signals.

FIG. 1 is a block diagram illustrating the construction of a wirelessterminal including an intenna according to a first embodiment of thepresent invention. FIG. 1 which shows the construction of the wirelessterminal including an intenna for both transmission/reception ofwireless communication signals and reception of digital broadcastsignals, and an intenna solely for receiving the digital broadcastsignals. The wireless communication signals represent Code DivisionMultiple Access (CDMA) communication signals, Personal CommunicationSystem (PCS) communication signals and Global System for Mobile (GSM)communication signals. In the embodiment of the present invention, it isassumed that the wireless communication signals represent CDMAcommunication signals.

Referring to FIG. 1, a first intenna 100 receives CDMA communicationsignals and applies the received CDMA communication signals to aswitching unit 190 according to the embodiment of the present invention.The first intenna 100 applies digital broadcast signals (DMB signals) tothe switching unit 190. The second intenna 105 represents an intenna forreceiving DMB signals, which applies the received DMB signals to a tuner140.

A Radio Frequency (RF) unit 121 performs wireless communication of thewireless terminal. The RF unit 121 includes an RF transmitter forup-converting and amplifying the frequency of transmitted signals, an RFreceiver for low-noise amplifying received signals and down-convertingthe frequency of the received signals, etc. According to the embodimentof the present invention, the RF unit 121 transmits signals to the firstintenna 100 through the switching unit 190, and receives wirelesscommunication signals, which are received in the first intenna 100,through the switching unit 190.

A data processor 123 includes a transmitter for coding and modulatingthe transmitted signals, and a receiver for demodulating and decodingthe received signals, etc. That is, the data processor 123 may include amodem and a codec. An audio processor unit 125 reproduces receptionaudio signals output from the data processor 123 or transmitstransmission audio signals generated from a microphone to the dataprocessor 123.

A key input unit 127 includes keys for inputting number and characterinformation and function keys for setting various functions. The keyinput unit 127 includes various mode setup keys for processing DMBsignals.

A memory 129 may include a program memory and a data memory. The programmemory may store programs for controlling general operations of thewireless terminal, and programs for processing DMB signals. The memory129 temporarily stores data generated during the execution of theprograms.

The controller 110 performs a function of controlling the generaloperations of the wireless terminal, which may also include the dataprocessor 123. When the wireless terminal is in a communication mode,the controller 110 controls the switching unit 190 to switch signalsreceived in the first intenna 100 to the RF unit 121, thereby allowingthe RF unit 121 to perform a wireless communication function. When thewireless terminal is in a DMB mode, the controller 110 controls theswitching unit 190 to switch DMB signals received in the first intenna100 and the second intenna 105 to the tuner 140, thereby allowing thetuner 140 to receive the DMB signals.

The tuner 140 receives DMB signals selected under the control of thecontroller 110, and converts the frequency of the received DMB signals.A DMB processor 150 demodulates and decodes the DMB signals output fromthe tuner 140.

A codec 160 decodes audio signals and image signals, which areseparately received in the DMB processor 150, into Moving PicturesExperts Group (MPEG) signals, outputs the decoded audio signals to theaudio processor unit 125, and outputs the decoded image signals to anvideo processor unit 170.

The video processor unit 170 processes both the image signals outputfrom the codec 160 and user data output from the controller 110, andoutputs the processed signals and data to a corresponding area of adisplay unit 180. The display unit 180 displays data output from thecontroller 110 in the communication mode, and displays DMB image dataand user data output from the video processor unit 170 in the DMB modeto corresponding areas, respectively.

The intenna according to the present invention may also be installed inand used for a three mode wireless terminal which can receive a CDMAcommunication service, a PCS communication service and a GSMcommunication service, as well as the wireless terminal which performstransmission/reception of the wireless communication signals andreception of the DMB signals as illustrated in FIG. 1. The intennaaccording to the present invention, which may be installed in the threemode wireless terminal for receiving DMB signals, may include twointennas for transmission/reception of wireless communication signals,one intenna for transmission/reception of wireless communicationsignals, and an intenna for reception of digital broadcast signals.Further, the intenna according to the present invention may include twointennas for both transmission/reception of wireless communicationsignals and reception of digital broadcast signals, and an intenna fortransmission/reception of wireless communication signals. Furthermore,the intenna according to the present invention may include two intennasfor transmission/reception of wireless communication signals, and anintenna for both transmission/reception of wireless communicationsignals and reception of digital broadcast signals. Moreover, theintenna according to the present invention may include three intennasfor both transmission/reception of wireless communication signals andreception of digital broadcast signals, and an intenna for reception ofdigital broadcast signals.

FIG. 2 is a block diagram illustrating the construction of a wirelessterminal including an intenna according to a second embodiment of thepresent invention. FIG. 2 shows the construction of a three modewireless terminal which includes an intenna having an intenna for CDMAand PCS communication, an intenna for GSM communication, and an intennafor reception of DMB signals. The DMB signals represent satellite DMBsignals, L-band terrestrial DMB signals, and band-III terrestrial DMBsignals. In the embodiment of the present invention, it is assumed thatthe DMB signals represent L-band terrestrial DMB signals with afrequency band of 1452˜1492 MHz.

Referring to FIG. 2, a first intenna (CDMA/PCS) 201 receives CDMA or PCScommunication signals, and applies the received CDMA or PCScommunication signals to a diplexer 202.

The diplexer 202 separates the received frequency band signals. If thecommunication signals received in the diplexer 202 have a frequency bandof 824˜894 MHz, the diplexer 202 applies the received communicationsignals to a CDMA duplexer 203. Further, if the communication signalsreceived in the diplexer 202 have a frequency band of 1851˜1989 MHz, thediplexer 202 applies the received communication signals to a PCSduplexer 204.

A second intenna (GSM) 210 receives GSM communication signals, andapplies the received GSM communication signals to a GSM duplexer 211.

A third intenna (L-DMB) 220 receives L-DMB signals with a frequency bandof 1452˜1492 MHz, and transmits the received L-DMB signals to a tuner221. The tuner 221 converts the frequency of the received L-DMB signals,and a DMB processor 222 demodulates and decodes DMB signals output fromthe tuner 221.

As described above, the present invention provides a wireless terminalwith an intenna for receiving digital broadcast signals or an intennafor receiving both wireless communication signals and digital broadcastsignals, thereby reducing the intenna package space of the wirelessterminal.

Although a preferred embodiment of the present invention has beendescribed for illustrative purposes, those skilled in the art willappreciate that various modifications, additions and substitutions arepossible, without departing from the scope and spirit of the inventionas disclosed in the accompanying claims, including the full scope ofequivalents thereof.

1. An intenna of a wireless terminal, the intenna comprising: at leastone intenna for transmission/reception of wireless communicationsignals; and an intenna for reception of digital broadcast signals. 2.The intenna as claimed in claim 1, further comprising an intenna fortransmission/reception of the wireless communication signals.
 3. Theintenna as claimed in claim 1, wherein the wireless communicationsignals represent CDMA communication signals, PCS communication signals,and GSM communication signals, which use a mobile communication network.4. The intenna as claimed in claim 1, wherein the digital broadcastsignals represent satellite digital broadcast signals, L-bandterrestrial digital broadcast signals, and band-III terrestrial digitalbroadcast signals.
 5. An intenna of a wireless terminal, the intennacomprising: at least one intenna for both transmission/reception ofwireless communication signals and reception of digital broadcastsignals; and an intenna for reception of the digital broadcast signals.6. The intenna as claimed in claim 5, wherein the wireless communicationsignals represent CDMA communication signals, PCS communication signals,and GSM communication signals, which use a mobile communication network.7. The intenna as claimed in claim 5, wherein the digital broadcastsignals represent satellite digital broadcast signals, L-bandterrestrial digital broadcast signals, and band-III terrestrial digitalbroadcast signals.
 8. An intenna of a wireless terminal, the intennacomprising an intenna for both transmission/reception of wirelesscommunication signals and reception of digital broadcast signals.
 9. Theintenna as claimed in claim 8, wherein the wireless communicationsignals represent CDMA communication signals, PCS communication signals,and GSM communication signals, which use a mobile communication network.10. The intenna as claimed in claim 8, wherein the digital broadcastsignals represent satellite digital broadcast signals, L-bandterrestrial digital broadcast signals, and band-III terrestrial digitalbroadcast signals.
 11. An intenna of a wireless terminal, the intennacomprising: at least one intenna for both transmission/reception ofwireless communication signals and reception of digital broadcastsignals; and at least one intenna for transmission/reception of thewireless communication signals.
 12. The intenna as claimed in claim 11,wherein the wireless communication signals represent CDMA communicationsignals, PCS communication signals, and GSM communication signals, whichuse a mobile communication network.
 13. The intenna as claimed in one ofclaims 11, wherein the digital broadcast signals represent satellitedigital broadcast signals, L-band terrestrial digital broadcast signals,and band-III terrestrial digital broadcast signals.